Audio Switch Board - Philips MX1060D Service Manual

10-1

AUDIO SWITCH BOARD

TABLE OF CONTENTS
LC78212 Internal Block ................................................. 10-1
Components & Chips Layout + voltages ....................... 10-2
Circuit Diagram .............................................................. 10-3
Electrical parts list .......................................................... 10-4
LC78212 Internal Block
LC78212
L1 1
L2 2
L3 3
LCOM1 4
L4 5
L5 6
L6 7
LCOM2 8
IN7 9
IN8 10
LCOM3 11
VEE 12
CE 13
Control
DI 14
CL 15
10-1
28 R3
27 RCOM1
Level Shifter
19 VDD
Latch
18 RES
Shift Register
17 S
16 VSS
30 R1
29 R2
26 R4
25 R5
24 R6
23 RCOM2
22 R7
21 R8
20 RCOM3